Oldham WX4 Controller Features and Benefits (English)

Oldham WX4 Controller Features and Benefits (English)
The Fixed Gas Detection People
W X4
Analog + Digital Controller
The WX4 offers convenient 4-20mA or bridge sensor analog
inputs and can be configured for four 4-20mA analog outputs or
operate as a ModBus RTU slave device via the optional
RS-232/485 communication port.
4 Channels
The WX4 can be configured to accept up to four 4-20mA or up to four bridge sensor inputs.
Programmable Relays
The WX4 has two programmable 5 amp SPDT relays standard and one common horn relay
standard. An additional set of six optional programmable relays may also be configured.
Each programmable relay allows for voting based on the alarm state of each of the four
RS-232/485 ModBus
The WX4 can be configured with an RS-232/485 ModBus RTU master port or slave port.
The option provides the WX4 with the ability to transmit its analog inputs onto a digital
communication loop or receive digital inputs from a ModBus device.
By also adding one of the WX4’s wireless packages, the WX4 can operate as a wireless
ModBus slave or receive readings from up to four wireless OLCT 200 transmitters.
Wireless Communication
The WX4 offers both 900Mhz and 2.4Ghz wireless communication capability. The WX4 can
transmit its four channels to a wireless ModBus master device or it can be configured to
receive wireless data from an equipped OLCT 200 transmitter. Wireless communications
utilize 256-bit encryption and can be configured for Division 2 and Division 1 applications.
Graphical LCD Display
The WX4 has a backlit graphical LCD display. Gas readings can be displayed on three
different screens:
Split Screen - Displays the gas reading, the gas type, and the alarm state of up to four
readings simultaneously.
Bar Graph - Displays a bar graph depiction of the gas reading and the alarm levels for
up to four channels. The numerical gas value and gas type are also displayed for each
Trend Chart - Displays the current gas value and gas type as well as a trend graph for
the last 30 minutes.
Touch Key/Non-Intrusive
The WX4 has both touch keys and non-intrusive operation standard. A magnetic wand is
provided with each controller for non-intrusive operation.
Security Mode
A four-digit Pass Code may be entered to restrict editing controller configuration menus.
All menus can still be viewed while in Security Mode.
A user-editable field allows a custom message to be displayed when in security mode.
This may be a contact name or number for an authorized individual.
W X4
Visual Alarm LEDs
Each WX4 has six visual LEDs for notification of alarms and system status. LEDs change
from flashing to steady after acknowledgment.
ALARM 1 - Yellow LED flashes if any channel reaches an Alarm 1 level.
ALARM 2 - Red LED flashes if any channel reaches an Alarm 2 level.
ALARM 3 - Red LED flashes if any channel reaches an Alarm 3 level.
FAULT - Red LED flashes if any channel has a Fault indication.
KEYPAD - Yellow LED flashes when touch key is pressed or non-intrusive key selection
is made.
CAL - Yellow LED is steady when any channel is in calibration mode.
Internal Memory
All configuration data is stored in non-volatile memory to protect against power
The WX4 also records up to 65 of the last events ( Alarms, Alarm Acknowledgements,
Calibrations, and Power On) and provides a time and date stamp.
Data Logging
The WX4 can display the last 30 minutes of readings for each of the four channels.
Multiple Enclosure Options
The WX4 can be configured with one of four enclosure options:
Non-Metallic Wall Mount - NEMA 4X/IP66 rated enclosure. Suitable for Div 2
Painted Steel Wall Mount - NEMA 4X/IP66 rated enclosure. Suitable for Div 2
Stainless Steel Wall Mount - NEMA 4X/IP66 316 stainless steel enclosure. Suitable for
Div 2 corrosive environments.
Explosion-Proof Wall Mount - NEMA 7 aluminum enclosure. Suitable for Div 1
hazardous environments.
Built-In Piezo Siren
The WX4 has a built-in piezo buzzer for audible notification of keystrokes and alarm events.
The buzzer can be turned on or off at the user’s discretion.
A standard 24VDC alarm port is available for powering an integrated 100db alarm.
The optional Human Machine Interface software for the WX4 allows for real-time display
of channels on up to 10 WX4 controllers, providing visibility of up to 40 channels. The HMI
software also allows for data-logging capability for all 40 channels and allows for userprovided graphics, such as plant layouts, to be uploaded into the graphical interface.
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Fax: +65-6561-7787
[email protected]ap.indsci.com
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REV 0311
Ref WX4_F&B_EN_v1
HMI Software
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